We raise the problem of the minorities' survival in the presence of positive network externalities. We rely on the example of thematic clubs to illustrate why and in which circumstances such survival problems might appear, …rst considering the case of simple network externalities and then the case of cross network externalities. Sonnac and Skerdilajda Zanaj for their comments and suggestions.

We consider whether Sub-Saharan African (SSA) countries are mainly poor because they are governed worse than other countries, as suggested by recent studies on the supremacy of institutions. Our empirical results show that the supremacy of institutions does not hold. SSA countries appear to face specific development problems in addition to weak institutions. Given their geographic and economic ...

moral psychology is an important part of ethics. some of the recent interpreters of nietzsche’s philosophy have tried to elaborate a nietzschean naturalistic moral psychology based on his remarks and pose it against other positions in moral psychology, especially the kantian one with its fundamental claim that third-person accounts of moral psychology have no bearing on a morality which purport...